package com.sky.service.Impl;

import com.sky.entity.Orders;
import com.sky.mapper.OrderMapper;
import com.sky.service.ReportService;
import com.sky.vo.TurnoverReportVO;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Slf4j
@Service
public class ReportServiceImpl implements ReportService {
    @Autowired
    private OrderMapper orderMapper;
    @Override
    public TurnoverReportVO getTurnoverStatistics(LocalDate begin, LocalDate end) {
        //当前集合用于存放begin到end范围内每天的日期
        List<LocalDate> dateList=new ArrayList<>();
        dateList.add(begin);
        while (!begin.equals(end)){
            //日期计算，计算指定日期后一天对应日期
            begin=begin.plusDays(1);
            dateList.add(begin);
        }
        //存放每天的营业额
        List<Double> turnoverList=new ArrayList<>();
        for (LocalDate date : dateList) {
            //查询date日期对应的营业额数据，营业额是指已完成的订单金额合计
            LocalDateTime beginTime=LocalDateTime.of(date, LocalTime.MIN);
            LocalDateTime endTime=LocalDateTime.of(date, LocalTime.MAX);
            //select sum(amount) from orders where order_time >beginTime and order_time <endTime and status=5
            Map map=new HashMap<>();
            map.put("begin",beginTime);
            map.put("end",endTime);
            map.put("status", Orders.COMPLETED);
            Double turnover=orderMapper.sumByMap(map);
            turnover=turnover ==null ? 0.0:turnover;
            turnoverList.add(turnover);
        }
        return  TurnoverReportVO.builder().dateList( StringUtils.join(dateList,",")).turnoverList(StringUtils.join(turnoverList,",")).build();
    }
}
